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Carrier Phase Measurement

Carrier Phase Measurement

Carrier Phase Measurement:

  • Measures fractional phase difference between the received carrier wave from the satellite and a locally generated replica.
  • Provides a very precise distance measure (satellite to receiver)
  • Needs to be initialized by finding the initial number of carrier wave cycles.
  • Is much more precise than pseudorange code measurement. thanks to the carrier period being much smaller than code chip duration (in L1 CA-code signal, 1540 carrier periods fit in one PRN spreading code chip).